1993 Mazda Navajo temp

1993 MAZDA NAVAJO
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LARRYASBERRY
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Engine Cooling problem
1993 Mazda Navajo 6 cyl Four Wheel Drive Manual 194xxx miles

my temperature gauge in my car goes from hot to cold. It sometimes blows cold air when i turn on the heater. I have replaced the thermostat and filled up the coolant making sure there is no air in the engine. what else could be making it do this?
Oct 20, 2010 at 1:13 PM
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BLUELIGHTNIN6
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ensure radiator fan(s) come on properly and flush coolant system as there could be partial clog in system
Oct 20, 2010 at 5:07 PM